"how to make this conditional, either hyphen (-) or I want to say en dash(–)?"
Just replace the single hyphen in your regex with a character class containing all possible dashes, hyphens, etc.
In the character class, always put an ASCII hyphen as the last character or you'll generate a range.
See perlrecharclass and, in particular, the
"Bracketed Character Classes" section
for much more detailed information.
An example script follows but, first, some notes:
-
The open pragma indicates that output to stdout should use UTF-8.
This also avoids the "Wide character in print ..." warning.
-
I've used a mix of \x{...} and \N{...} to show some alternatives.
Don't do this in your real code as it's likely to be confusing:
pick one format and stick with that.
#!/usr/bin/env perl
use strict;
use warnings;
use open OUT => qw{:encoding(UTF-8) :std};
my ($en_dash, $em_dash) = ("\x{2013}", "\N{EM DASH}");
my $str = "a-b${en_dash}c${em_dash}d";
my $re = qr{[\N{EN DASH}\x{2014}-]};
print "Original string: $str\n";
print "Parts separated by some dash:\n";
print "$_\n" for split $re, $str;
Output:
Original string: a-b–c—d
Parts separated by some dash:
a
b
c
d
Because the hyphen and dashes are not easily distinguishable,
here's the same output piped through cat -vet.
Don't worry too much if you don't understand the codes;
just notice that they are different.
$ ./pm_11137036_re_alt_dashes.pl | cat -vet
Original string: a-bM-bM-^@M-^ScM-bM-^@M-^Td$
Parts separated by some dash:$
a$
b$
c$
d$
See also these Unicode® resources:
the PDF "Code Chart: General Punctuation -- Range: 2000–206F";
and, for characters referenced therein but not in that range,
"Unicode 14.0 Character Code Charts"
(note the "Find chart by hex code:" near the top of the page).
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